During most of 2007, buyers of Microsoft’s volume-licensing bundle were allowed to run one copy of Vista Ultimate on each machine covered by the arrangement.
Microsoft quietly changed this policy, however, and now allows businesses to get only one Vista Ultimate product key for every 100 copies of Vista Enterprise they purchase.
Read more at http://windowssecrets.com/comp/080221
Other stories on this issue of Windows Secrets:
KNOWN ISSUES: Dual-booting XP deletes Vista restore points
WACKY WEB WEEK: Roll over, Beethoven
WOODY’S WINDOWS: Vista Service Pack 1 — boring but necessary
PERIMETER SCAN: Now is the time for debunking the Mocmex threat
PATCH WATCH: Microsoft pulls buggy Vista “prerequisite” patch